Finding the Third Proportional to 14,259.75 and 30,978.75

Step by Step Solution

1. Step 1: Write the proportion equation
   14,259.75 : 30,978.75 = 30,978.75 : x
2. Step 2: Convert to fraction form
   14,259.75/30,978.75 = 30,978.75/x
3. Step 3: Cross multiply
   14,259.75x = 30,978.75 × 30,978.75
4. Step 4: Simplify right side
   14,259.75x = 959,682,951.56
5. Step 5: Solve for x
   x = 959,682,951.56/14,259.75
6. Step 6: Final answer
   x = 67,300.12